EDM wire cutting uses a metallic wire (electrode) to cut a programmed contour in a work piece. Extrusion dies and blanking punches are very often machined by wire cutting.
EDM die sinking reproduces, in a metallic work piece, the shape of a tool called electrode. The shape given to the electrode is that of the object that is going to be molded.
A three, four-axis vertical machining center can run the gamut of capability and cost. Assessing your application requirements now and in the future can make for a much wiser machining center purchase.